Pith Number

pith:7F4D2XQW

pith:2024:7F4D2XQWASVL7BRIM74HRO2BXG

not attested not anchored not stored refs pending

Sparsity via Sparse Group $k$-max Regularization

Johan A.K. Suykens, Jun Xu, Qinghua Tao, Xiangming Xi

arxiv:2402.08493 v1 · 2024-02-13 · cs.LG · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7F4D2XQWASVL7BRIM74HRO2BXG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T07:44:47.627271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9783d5e1604aabf862867f878bb41b9af83ce09802b7f9d6092fb6da99fadbe

Aliases

arxiv: 2402.08493 · arxiv_version: 2402.08493v1 · doi: 10.48550/arxiv.2402.08493 · pith_short_12: 7F4D2XQWASVL · pith_short_16: 7F4D2XQWASVL7BRI · pith_short_8: 7F4D2XQW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7F4D2XQWASVL7BRIM74HRO2BXG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f9783d5e1604aabf862867f878bb41b9af83ce09802b7f9d6092fb6da99fadbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "171929a70dc028113627e09edffecacea011b290b88a33b7d9cdd305ad1ca87e",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-02-13T14:41:28Z",
    "title_canon_sha256": "d1e61eef2c56f9b81c4b72cccaa808d63263f15f40fca8b9d5be9951fe36fb3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.08493",
    "kind": "arxiv",
    "version": 1
  }
}